Which one is false in the following statement? (1) A catalyst is sp...

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Which one is false in the following statement?
(1) A catalyst is specific in its action
(2) A very small amount of the catalyst alters the rate of
\( \mathrm{P} \) a reaction

WW
(3) The number of free vacancies on the surface of the catalyst increases on sub-division
(4) Ni is used as a catalyst in the manufacture of ammonia
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